41results about How to "Assembly influence" patented technology

The invention discloses a linkage electric connection assembly. The linkage electric connection assembly comprises a linkage mechanism and two electric connection devices. The electric connection device is connected between a body of the electric appliance device with adraw-out structure and adraw-out device, and comprises a draw-out device connection assembly, a body connection assembly and a flexible assembly. The draw-out device connection assembly is fixed on the draw-out device and is electrically connected with the wire inlet and outlet ends of the draw-out device. The body connection assembly comprises a contact piece with a clamping mechanism, and the clamping mechanism enables the contact piece to be tightly attached to and clamp abody busbar. The flexible assembly connects the draw-out device connection assembly and the body connection assembly to form a conductive path. The contact pieces of the body connecting assembly adapt to the position deviation of the body busbar to generate deviation, so the contact pieces are tightly attached to and clamp the body busbar, and the flexible assembly absorbs the deviation of the contact pieces through self deformation, so the deviation is not transmitted to the draw-out device connection assembly. The linkage mechanism is connected with the clamping mechanisms of the two electric connecting devices, and the linkage mechanism isinsulated and enables the clamping mechanisms of the two electric connecting devices to act synchronously.

The invention discloses a system for detecting the performance of a needle roller bearing of a connecting rod big end. The system comprises a bearing inlet and outlet mechanism assembled on a system rack, an inertia wheel driving mechanism, a bearing detection mechanism and a data acquisition processor, wherein the bearing detection mechanism comprises a detection mandrel fixedly arranged on the rack and a bearing detection sleeve suspended on the detection mandrel; and the bearing detection sleeve comprises the needle roller bearing to be detected and a detection inertia wheel sleeved with the needle roller bearing. The novel detection system is provided for an inner and outer circle-free needle roller bearing of the connecting rod big end and the shortcomings of a method for detecting the performance of the needle roller bearing in the prior art, detection results are more comprehensive and accurate, and the influence of the quality of the needle roller bearing on assembly and the performance of an engine is eliminated.

The invention provides a high-accuracy visual coaxial optical alignment assembly system for a miniature structural member. The system comprises a manipulator, a light source, an optical alignment device, a micro-positioning platform, an image pick-up device and a control device, wherein the image pick-up device and the optical alignment device are positioned on the same horizontal line; and the manipulator and the micro-positioning platform are positioned above and below the optical alignment device respectively. A local template is used, images of both a base member and a member to be arranged are binary images, and a binary edge only exists in the template matching process, so the calculated amount is greatly reduced and the speed is improved during matching, and the requirement on a positioning real-time property is met. The local template is used for searching an accurate alignment pixel coordinate and a directional line included angle of the base member and the member to be arranged, and the micro-positioning platform is adjusted under control of a control signal generated by the system, so that the system has higher alignment accuracy.

Disclosed are a vector expressing poliomyelitis virus-like granule proteins and a method for preparing poliomyelitis virus-like granules. The vector contains expression cassettes of the following structure: any one of three genes of poliomyelitis virus structural proteins i.e. VP0, VP1, VP3, is located in the downstream of promoter 1, and the other two are connected to the downstream of promoter 2 by a 2A sequence. The promoting expressions directions of the two promoters are opposite. The method for preparing poliomyelitis virus-like granules is that the corresponding host cells are transfected with the vector. After cultivation, virus-like granules and recombinant baculoviruses can be obtained. If what are obtained are the recombinant baculoviruses, then the host cells are infected with the viruses, and virus-like granules can be obtained.